Sunnyside 872G5 Boiled Linseed Oil 5 Gallon is natural oil derived from the seed of the flax plant. Used to extend and fortify oil based coatings to assure a uniformly tough, elastic and glossy film that repels water, resists weathering, slows chalking and prolongs coating life. Also makes an easy-to-use, quality finish for fine woods, furniture and antiques. Dries in 12-18 hours. Read label carefully before use. Sunnyside 872G5 Boiled Linseed Oil 5 Gallon is natural oil derived from the seed of the flax plant. Used to extend and fortify oil based coatings to assure a uniformly tough, elastic and glossy film that repels water, resists weathering, slows chalking and prolongs coating life. Also makes an easy-to-use, quality finish for fine woods, furniture and antiques. Dries in 12-18 hours. Read label carefully before use.